For a comparatively small country, Ireland has made a disproportionate contribution to world literature in all its branches. The works that are best known outside the country are in English, but Irish Gaelic also has the most significant body of written literature, both ancient and recent, of any Celtic language, in addition to a strong oral tradition of legends and poetry. Poetry in Irish represents the oldest vernacular poetry in Europe, with the earliest examples dating from the 6th century. In more recent times, Ireland has produced four winners of the Nobel Prize for Literature; George Bernard Shaw, William Butler Yeats, Samuel Beckett and Seamus Heaney
The state operates under the Constitution of Ireland, also known as Bunreacht na hÉireann, adopted in 1937. The constitution falls broadly within the liberal democratic tradition. It defines the organs of government and guarantees certain fundamental rights. The constitution may only be amended by referendum. Important constitutional referenda have concerned issues such as abortion, the status of the Catholic Church, divorce and the European Union.
Nationalist grievances at Unionist discrimination within the state eventually led to large civil rights protests in 1960s. It was during this period of civil unrest that the Provisional IRA, an extra-legal paramilitary group favouring the creation of a united Ireland, began its campaign of bombings and shootings. Other groups on both the Unionist and nationalist side also began to participate in the violence and the period known as the "Troubles" began. Owing to the civil unrest the British government suspended home rule in 1972 and imposed direct rule.
Much of the Irish calendar still today reflects the old pagan customs, with later Christian traditions also having significant influence. As in other countries, the date for observing Christmas was deliberately chosen to coincide with the winter solstice. Christmas in Ireland has several local traditions, some in no way connected with Christianity. On 6 January, which is known as "The Little Christmas" (An Nollaig Bhéag) or "The Women's Christmas" (Nollaig na mBan), there is a custom of "Wren boys" who call door to door, in times past, with a dead wren.
The parliament of the Republic of Ireland is the Oireachtas. The Oireachtas consists of the President and two houses: Dáil Éireann and Seanad Éireann (also known as the Senate). The Dáil is by far the dominant tier of the legislature. The President may not veto laws in most circumstances and the Senate may only delay legislation.
The three most important international airports in the Republic are Dublin Airport, Cork Airport and Shannon Airport. All provide extensive services to the UK, Europe and North America. The Irish national airline Aer Lingus and low-cost operator Ryanair are based at Dublin. Shannon is an important stopover on trans-Atlantic route for refuelling operations. There are several smaller regional airports in the Republic (Galway Airport, Kerry Airport, Knock Airport, Sligo Airport, Waterford Airport) that mostly limit their services to Ireland and the United Kingdom.
From its creation in 1921 until 1972 Northern Ireland enjoyed limited self-government within the United Kingdom, with its own parliament and prime minister. However the Protestant and Catholic communities in Northern Ireland each voted almost entirely along sectarian lines, meaning that the government of Northern Ireland was dominated by the Unionist majority which did not permit Catholics to participate in the government.
Many Irish urban centres developed as garrison towns during the years of British rule and this fact contributed towards their particular character. Another significant factor was the fact thar the Industrial Revolution had a limited impact in Ireland. Belfast had its shipbuilding and a number of towns in Ulster had mechanised linen industries, but the majority of towns developed primarily as commercial and administrative centres. By the end of the 20th century, over 50% of the population lived in these urban areas.
The Anglo-Irish Treaty was narrowly ratified by the Dáil in December 1921 but was rejected a large minority, resulting in the Irish Civil War which lasted until 1923. In 1922, in the middle of this war, the Irish Free State came into being. For its first years the new state was governed by the victors of the Civil War. However in the 1930s Fianna Fáil, the party of the opponents of the treaty, were elected into government. The party introduced a new constitution in 1937 which renamed the state to simply "Ireland".
There have been recent efforts in Ireland to use renewable energy such as wind energy with large wind farms being constructed in coastal counties such as Mayo and County Antrim. Recently what will be the world's largest offshore wind farm is being developed at Arklow Bank off the coast of Wicklow. It is estimated to generate 10% of Irelands energy needs when it is complete. These constructions have in some cases been delayed by opposition from locals, most recently on Achill Island, some of whom consider the wind turbines to be unsightly. Another issue in the Republic of Ireland is the failure of the aging network to cope with the varying availability of power from such installations. Turlough Hill is the only energy storage mechanism in Ireland.
In 1800 the Irish Parliament passed the Act of Union which, in 1801, merged the Kingdom of Ireland and the Kingdom of Great Britain to create the United Kingdom of Great Britain and Ireland. The whole island of Ireland would remain within the United Kingdom, rule directly by the UK Parliament in London. The nineteenth century saw considerable economic difficulties for Ireland, including the Great Famine of the 1840s in which about 750,000 people died and another million were forced to emigrate.
A ring of coastal mountains surrounds low central plains. The highest peak is Carrauntuohill (Irish: Corrán Tuathail), which is 1041 m (3414 feet). The island is bisected by the River Shannon, at 113 km (70 mi) the longest river in Ireland or Britain. The island's lush vegetation, a product of its mild climate and frequent but soft rainfall, earns it the sobriquet "Emerald Isle".
